Nova Development said Thursday that it is now shipping Art Explosion Greeting Card Factory for both Mac OS X and Mac OS 9. Built on Nova’s Print Explosion engine, Greeting Card Factory for Macintosh allows you to create store-quality greeting cards for every occasion. “You can choose from more than 3,000 exclusive greeting cards and customizable projects like invitations, thank-you notes, announcements, electronic greetings, labels, stickers, and much more.” The US$49.95 software includes over 45,000 premium-quality graphics, 300 fonts, and more than five hundred 24-bit color photographs to choose from.